Quantitative grease injection valve

Abstract

The utility model relates to the technical field of valves, in particular to a quantitative grease injection valve which comprises an oil storage box shell, the lower surface of the oil storage box shell is fixedly connected with a first limiting plate and a second limiting plate respectively, and the upper surface of the oil storage box shell is fixedly connected with a connecting box. The upper surface of the cylinder shell is fixedly connected with the upper cover plate, and the lower surface of the cylinder shell is fixedly connected with the upper surface of the connecting box; the device has the beneficial effects that the sliding block is pushed to separate the limiting block from the limiting notch, the position of the pressing plate can be adjusted according to needs to adjust the capacity of the oil storage box, after adjustment is completed, the sliding block is pulled to enable the limiting block to return to the limiting notch, the pressing plate is fixed, at the moment, the second connecting rod and the bottom plate move downwards, and quantitative lubricating grease in the oil storage box is driven to be sprayed out from the oil outlet; by means of the design, the quantitative grease injection valve can adjust the injection amount of lubricating grease according to actual production requirements, the quantitative grease injection valve is suitable for lubricating tasks of different devices, the operation cost of the devices is reduced, and the lubricating effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of valves, in particular to a quantitative grease injection valve. Background Art

[0002] Usually, mechanical parts on machines need to be injected with a certain amount of grease during assembly, repair and maintenance. For example, most bearing industries use grease lubrication to ensure part lubrication, reduce relative friction and improve part reliability. Therefore, it is necessary to use quantitative grease injection valves and precise lubrication equipment.

[0003] In the prior art, the function of a quantitative grease injection valve is to accurately inject a preset amount of grease into a mechanical component to avoid insufficient or excessive lubrication, save lubricant and protect the normal operation of the equipment.

[0004] However, the existing quantitative grease injection valve cannot adjust the liquid output according to actual production needs, and is difficult to adapt to the lubrication work of different equipment. Insufficient grease injection may reduce the service life of the machine, increase the cost of equipment use, reduce practicality, and be inconvenient to use. Utility Model Content

[0005] The utility model aims to provide a quantitative grease injection valve to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quantitative grease injection valve, which comprises: an oil storage box shell, the lower surface of the oil storage box shell is respectively fixedly connected to the first limit plate and the second limit plate, the side of the oil storage box shell is fixedly connected to the oil inlet, and the upper surface of the oil storage box shell is fixedly connected to the connecting box; a cylinder shell, the upper surface of the cylinder shell is fixedly connected to the upper cover plate, the lower inner wall of the cylinder shell is fixedly connected to the resistance slider, the lower surface of the cylinder shell is fixedly connected to the upper surface of the connecting box, and the side of the cylinder shell is fixedly connected to the vent.

[0007] Preferably, the first limiting plate is provided with a plurality of limiting slots, the first limiting plate is provided with a first slot, the limiting block can pass through the first slot and be connected with the pressing plate, the limiting block is in a "T"-shaped structure, and the limiting block can be inserted into the limiting slot to limit the movement of the pressing plate.

[0008] Preferably, the second limiting plate is provided with a first notch, and the sliding block can pass through the second notch and be connected to the pressing plate.

[0009] Preferably, the side surface of the connection box is fixedly connected to the oil outlet, and a sealing ring is sleeved inside the connection box, and the inner diameter of the sealing ring is equal to the diameter of the bottom plate.

[0010] Preferably, the upper cover plate is a square plate-shaped structure, a third notch is provided on the upper surface of the upper cover plate, and a lower surface of the upper cover plate is fixedly connected to the spring.

[0011] Preferably, the pressing plate is a square plate-shaped structure, the upper surface of the pressing plate is fixedly connected to the first connecting rod, the upper surface of the first connecting rod is fixedly connected to the support plate, and the upper surface of the support plate is fixedly connected to the first sealing gasket.

[0012] Preferably, the diameter of the third notch is smaller than the diameter of the third limiting plate, the diameter of the third notch is equal to the diameter of the sliding plug rod, the lower surface of the sliding plug rod is fixedly connected to the connecting plate, the lower surface of the connecting plate is fixedly connected to the second sealing gasket, the second sealing gasket is fixedly connected to the second connecting rod, and the lower surface of the second connecting rod is fixedly connected to the bottom plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The quantitative grease injection valve proposed in the utility model pushes the slider to make the limit block disengage from the limit slot, then the position of the pressing plate can be adjusted as needed to adjust the capacity of the oil storage box, the first limit plate is provided with a scale mark, which is convenient for the staff to accurately set the position of the pressing plate, after the adjustment is completed, the slider is pulled again to make the limit block return to the limit slot, fix the pressing plate, at this time, the second connecting rod and the bottom plate move downward, driving the quantitative grease in the oil storage box to spray out from the oil outlet, this design enables the quantitative grease injection valve to adjust the injection amount of grease according to actual production needs, adapt to the lubrication tasks of different equipment, and reduce the operation cost of the equipment. This improves the lubrication effect. The process of grease entering the oil storage box is achieved through the oil inlet. At this time, the bottom plate is located in the sealing ring, which can prevent the grease from directly flowing into the inner cavity formed by the connecting box, the cylinder and the second sealing gasket, and then flowing out from the oil outlet. The gas enters the cylinder cavity through the vent, and the gas pressure causes the second connecting rod and the bottom plate to move downward, so that the inner cavity of the oil storage box is connected with the inner cavity formed by the connecting box, the cylinder and the second sealing gasket. As the second connecting rod and the bottom plate move further downward, the second connecting rod can block the oil inlet to prevent the grease from flowing back under pressure, thereby causing the grease to spray out at the oil outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 It is a schematic diagram of the structural section of the utility model;

[0018] Figure 4 for Figure 3 The enlarged structural diagram at B in the middle;

[0019] Figure 5 for Figure 3 The enlarged structural diagram at C in the middle;

[0020] Figure 6 It is a bottom view schematic diagram of the structure of the utility model.

[0021] In the figure: 1. oil storage box; 2. connecting box; 3. cylinder; 4. first limit plate; 5. first notch; 6. limit notch; 7. limit block; 8. pressing plate; 9. slider; 10. second limit plate; 11. second notch; 12. first connecting rod; 13. supporting plate; 14. first sealing gasket; 15. sealing ring; 16. oil inlet; 17. oil outlet; 18. resistance slider; 19. bottom plate; 20. second connecting rod; 21. sliding plug rod; 22. second sealing gasket; 23. connecting plate; 24. spring; 25. third limit plate; 26. upper cover plate; 27. third notch; 28. vent. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-Figure 6 The utility model provides a technical solution: a quantitative grease injection valve, characterized in that: the quantitative grease injection valve comprises: an oil storage box 1, the lower surface of the oil storage box 1 is fixedly connected to the first limit plate 4 and the second limit plate 10 respectively, the side of the oil storage box 1 is fixedly connected to the oil inlet 16, and the upper surface of the oil storage box 1 is fixedly connected to the connecting box 2; a cylinder 3, the upper surface of the cylinder 3 is fixedly connected to the upper cover plate 26, the inner wall of the lower end of the cylinder 3 is fixedly connected to the resistance slider 18, the lower surface of the cylinder 3 is fixedly connected to the upper surface of the connecting box 2, and the side of the cylinder 3 is fixedly connected to the vent 28;

[0025] During specific use, according to actual production needs, push the slider 9 to make the limit block 7 disengage from the limit slot 6, pull the pressing plate 8 to move to the appropriate position, pull the slider 9 to make the limit block 7 fit into the limit slot 6, so that the grease enters the inner cavity of the oil storage box 1 from the oil inlet 16, and the gas enters the inner cavity of the cylinder 3 from the air vent 28, and the second connecting rod 20 and the bottom plate 19 move downward. At this time, the inner cavity of the oil storage box 1 is connected with the inner cavity formed by the connecting box 2, the cylinder 3 and the second sealing gasket 22, and the grease can be sprayed out from the oil outlet 17.

[0026] Embodiment 2

[0027] On the basis of the first embodiment, in order to adjust the amount of fat output according to actual production needs, a first limiting plate 4 is provided, the first limiting plate 4 is provided with a plurality of limiting slots 6, the first limiting plate 4 is provided with a first slot 5, the limiting block 7 can pass through the first slot 5 and be connected to the pressing plate 8, the limiting block 7 is in a "T"-shaped structure, the limiting block 7 can be inserted into the limiting slot 6 to limit the movement of the pressing plate 8, the second limiting plate 10 is provided with a first slot 5, the slider 9 can pass through the second slot 11 and be connected to the pressing plate 8, the upper cover plate 26 is in a square plate-shaped structure, the upper surface of the upper cover plate 26 is provided with a third slot 27, the lower surface of the upper cover plate 26 is fixedly connected to the spring 24, the pressing plate 8 is in a square plate-shaped structure, the upper surface of the pressing plate 8 is fixedly connected to the first connecting rod 12, the upper surface of the first connecting rod 12 is fixedly connected to the support plate 13, and the upper surface of the support plate 13 is fixedly connected to the first sealing pad 14;

[0028] During specific use, push the slider 9 to make the limit block 7 disengage from the limit slot 6, pull the pressing plate 8 to move to the appropriate position, and a scale can be set on the first limit plate 4. The staff can adjust the capacity of the oil storage box 1 according to the actual situation by pushing the pressing plate 8 to the appropriate position, thereby adjusting the quantitative grease output, pull the slider 9 to make the limit block 7 fit into the limit slot 6, fix the pressing plate 8, and move the second connecting rod 20 and the bottom plate 19 downward to force a quantitative grease to be sprayed out from the oil outlet 17. The quantitative grease injection valve can adjust the liquid output according to actual production needs to adapt to the lubrication work of different equipment, reduce the equipment use cost, and increase practicality.

[0029] Embodiment 3

[0030] On the basis of the second embodiment, in order to prevent the grease from flowing out directly from the oil inlet 16 when injecting grease into the oil storage box 1, a connecting box 2 is provided, the side of the connecting box 2 is fixedly connected to the oil outlet 17, a sealing ring 15 is sleeved inside the connecting box 2, the inner diameter of the sealing ring 15 is equal to the diameter of the bottom plate 19, the diameter of the third notch 27 is smaller than the diameter of the third limiting plate 25, the diameter of the third notch 27 is equal to the diameter of the sliding plug rod 21, the lower surface of the sliding plug rod 21 is fixedly connected to the connecting plate 23, the lower surface of the connecting plate 23 is fixedly connected to the second sealing gasket 22, the second sealing gasket 22 is fixedly connected to the second connecting rod 20, and the lower surface of the second connecting rod 20 is fixedly connected to the bottom plate 19;

[0031] During specific use, the grease enters the inner cavity of the oil storage box 1 from the oil inlet 16. At this time, the bottom plate 19 is located in the sealing ring 15, which can prevent the grease from entering the inner cavity formed by the connecting box 2, the cylinder 3 and the second sealing gasket 22 and then directly flowing out from the oil outlet 17. The gas enters the inner cavity of the cylinder 3 from the air vent 28, and the second connecting rod 20 and the bottom plate 19 move downward. At this time, the inner cavity of the oil storage box 1 is connected with the inner cavity formed by the connecting box 2, the cylinder 3 and the second sealing gasket 22, and the second connecting rod 20 and the bottom plate 19 continue to move downward. The second connecting rod 20 can block the oil inlet 16, thereby preventing the grease from flowing back under the influence of pressure, and the grease can be sprayed out from the oil outlet 17.

[0032] In actual use, push the slider 9 to make the limit block 7 disengage from the limit slot 6. Then, the position of the pressing plate 8 can be adjusted as needed to adjust the capacity of the oil storage box 1. The first limit plate 4 is provided with a scale mark to facilitate the staff to accurately set the position of the pressing plate 8. After the adjustment is completed, pull the slider 9 to make the limit block 7 return to the limit slot 6 and fix the pressing plate 8. At this time, the second connecting rod 20 and the bottom plate 19 move downward to drive a certain amount of grease in the oil storage box 1 to be sprayed out from the oil outlet 17. This design enables the quantitative grease injection valve to adjust the injection amount of grease according to actual production needs, adapt to the lubrication tasks of different equipment, reduce the operating cost of the equipment, improve the lubrication effect, and lubricate. The process of grease entering the oil storage box 1 is achieved through the oil inlet 16. At this time, the bottom plate 19 is located in the sealing ring 15, which can prevent the grease from directly flowing into the inner cavity formed by the connecting box 2, the cylinder 3 and the second sealing gasket 22, and then flowing out from the oil outlet 17. The gas enters the inner cavity of the cylinder 3 through the air vent 28. The gas pressure causes the second connecting rod 20 and the bottom plate 19 to move downward, so that the inner cavity of the oil storage box 1 is connected with the inner cavity formed by the connecting box 2, the cylinder 3 and the second sealing gasket 22. As the second connecting rod 20 and the bottom plate 19 move further downward, the second connecting rod 20 can block the oil inlet 16 to prevent the grease from flowing back under pressure, thereby causing the grease to spray out at the oil outlet 17.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quantitative grease injection valve, characterized in that: The quantitative grease injection valve comprises: an oil storage box (1), the lower surface of the oil storage box (1) is fixedly connected to the first limit plate (4) and the second limit plate (10), the side of the oil storage box (1) is fixedly connected to the oil inlet (16), and the upper surface of the oil storage box (1) is fixedly connected to the connection box (2); The cylinder (3) has an upper surface fixedly connected to an upper cover plate (26), an inner wall of a lower end of the cylinder (3) fixedly connected to a resistance slide block (18), a lower surface of the cylinder (3) fixedly connected to an upper surface of a connection box (2), and a side of the cylinder (3) fixedly connected to a vent (28).

2. A quantitative grease injection valve according to claim 1, characterized in that: The first limiting plate (4) is provided with a plurality of limiting slots (6), the first limiting plate (4) is provided with a first slot (5), the limiting block (7) can pass through the first slot (5) and be connected to the pressing plate (8), the limiting block (7) is in a "T"-shaped structure, and the limiting block (7) can be inserted into the limiting slot (6) to limit the movement of the pressing plate (8).

3. A quantitative grease injection valve according to claim 1, characterized in that: The second limiting plate (10) is provided with a first notch (5), and the sliding block (9) can pass through the second notch (11) and be connected to the pressing plate (8).

4. A quantitative grease injection valve according to claim 1, characterized in that: The side surface of the connection box (2) is fixedly connected to the oil outlet (17), and a sealing ring (15) is sleeved inside the connection box (2), and the inner diameter of the sealing ring (15) is equal to the diameter of the bottom plate (19).

5. A quantitative grease injection valve according to claim 1, characterized in that: The upper cover plate (26) is in a square plate-shaped structure, a third notch (27) is provided on the upper surface of the upper cover plate (26), and the lower surface of the upper cover plate (26) is fixedly connected to the spring (24).

6. A quantitative grease injection valve according to claim 2, characterized in that: The pressing plate (8) is a square plate-shaped structure; the upper surface of the pressing plate (8) is fixedly connected to the first connecting rod (12); the upper surface of the first connecting rod (12) is fixedly connected to the supporting plate (13); and the upper surface of the supporting plate (13) is fixedly connected to the first sealing pad (14).

7. A quantitative grease injection valve according to claim 5, characterized in that: The diameter of the third notch (27) is smaller than the diameter of the third limiting plate (25), and the diameter of the third notch (27) is equal to the diameter of the sliding plug rod (21). The lower surface of the sliding plug rod (21) is fixedly connected to the connecting plate (23), the lower surface of the connecting plate (23) is fixedly connected to the second sealing gasket (22), the second sealing gasket (22) is fixedly connected to the second connecting rod (20), and the lower surface of the second connecting rod (20) is fixedly connected to the bottom plate (19).

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